Browse Prior Art Database

Changeable Array Keyboard

IP.com Disclosure Number: IPCOM000092214D
Original Publication Date: 1968-Oct-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 53K

Publishing Venue

IBM

Related People

Cooper, LM: AUTHOR [+2]

Abstract

A keyboard, mechanically constructed like that described in U. S. Patent 3,086,635, is provided with changeable key notation to facilitate typing with various changeable type faces. Keylever 10 includes platform 11 that receives downward projections 12 of a transparent keybutton 13. The latter is retained in key plate 14 by tabs 15. Key plate 14 is pivoted about hinge 16 to provide access to a changeable notation card or plate 17 located beneath. Card 17 includes slots 18 through which keybutton stems 12 project. Card 17 can include one or more keybutton notations 19 visible through each associated transparent keybutton 13. Visibility of notations 19 is enhanced by lens curvature 20.

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Changeable Array Keyboard

A keyboard, mechanically constructed like that described in U. S. Patent 3,086,635, is provided with changeable key notation to facilitate typing with various changeable type faces. Keylever 10 includes platform 11 that receives downward projections 12 of a transparent keybutton 13. The latter is retained in key plate 14 by tabs 15. Key plate 14 is pivoted about hinge 16 to provide access to a changeable notation card or plate 17 located beneath. Card 17 includes slots 18 through which keybutton stems 12 project. Card 17 can include one or more keybutton notations 19 visible through each associated transparent keybutton 13. Visibility of notations 19 is enhanced by lens curvature 20. Key notation thus can be readily changed either by sliding card 17 laterally in the direction of arrow 21 to expose a different notation 19 or by lifting key plate 14 and substituting a different notation card 17.

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